Time is the most Important Resource for Increasing Construction Efficiency

2015 ◽  
Vol 725-726 ◽  
pp. 1007-1012 ◽  
Author(s):  
Yury Panibratov ◽  
Arkady Larionov
Keyword(s):  
Payback Period ◽  
Construction Process ◽  
Time Saving ◽  
Object Construction ◽  
Initial Stage ◽  
Main Emphasis ◽  
Construction Efficiency ◽  
Period Duration ◽  
Construction Product ◽  
Production Resources

Time is presented as a special category of resource in the investment and construction process influencing directly or indirectly the final economic results of this type of activity. The main emphasis is placed by the authors in the course of justifying their approach on giving consideration in the context of this publication to such parameters as the service live of the ready construction product; investments payback period; duration of object construction; intensity of investment in time; labor productivity, etc. Proceeding from the revealed time losses between designing and construction; preparation to construction and its beginning; inter-shift and whole-shift downtime due to unsatisfactory production discipline; failures to meet the production resources delivery dates; disturbed plans of performing works, a conclusion has been made on the fact that solution of each of the foregoing tasks is the direct time saving and one of the main trends for increasing economic effectiveness of construction. It has been justified that the intensity of investing in time shall grow from a minimum at the initial stage to a maximum at the final stage.

scholarly journals Identification of geodetic risk factors occurring at the construction project preparation stage

2019 ◽  
Vol 9 (1) ◽  
pp. 14-17 ◽  
Author(s):  
Magdalena Kowacka ◽  
Dariusz Skorupka ◽  
Artur Duchaczek ◽  
Paweł Zagrodnik
Keyword(s):  
Risk Factors ◽  
Construction Projects ◽  
Expert Knowledge ◽  
Construction Project ◽  
Road Construction ◽  
Construction Process ◽  
The Road ◽  
Initial Stage ◽  
Preparation Stage

AbstractThe work contains information on the implementation of surveying works in the road construction process. The aim of the research was to identify geodetic risk factors occurring at the stage of preparation of a construction project, the presence of which can greatly disrupt the undertaking such as the road construction. The research was carried out on the basis of expert knowledge, documentation obtained from various road construction projects and the analysis of disturbances at the initial stage of works.

Factors Hindering Green Building Performance: A Review

2016 ◽  
Vol 8 (4-3) ◽  
Author(s):  
Tsau Kar Yen ◽  
Izran Sarrazin Mohammad ◽  
Maizan Baba ◽  
Rohaya Abdul Jalil ◽  
Nurul Nadiah Zainol ◽  
...  
Keyword(s):  
Green Building ◽  
Green Buildings ◽  
Social Benefits ◽  
Building Performance ◽  
Construction Process ◽  
Property Market ◽  
Performance Potential ◽  
Modeling Tools ◽  
Initial Stage ◽  
And Control

The demand for green buildings in the property market is substantially increasing. The motivation for the investment on green buildings ranges from environmental concerns and social benefits to financial savings during the operational stage. However, these perceived benefits have been argued to be mostly theoretical and yet to be empirically proven. There is often a performance gap between the expected and the actual measured performance of green buildings once operational. Green buildings simply fail to perform as to what it was intended despite the thorough design and technological considerations put at the initial stage of their development. Hence, by reviewing various literatures, this paper targets to indicate and discuss the factors that hinder green buildings from achieving their fullest performance potential. Six theoretical factors namely miscommunication, technologies used, modeling tools, construction process and handover, occupant behavior and management and control were identified from various literatures. The findings in this paper will be a commencement for further studies pertaining to non-performance of green buildings. 

A Constellation Graph Based Approach for Ontology Construction

2013 ◽  
Vol 397-400 ◽  
pp. 2540-2545
Author(s):  
Yi Li Liu ◽  
Yang Yang
Keyword(s):  
Construction Process ◽  
Time Saving ◽  
Ontology Construction ◽  
Knowledge Hierarchy

The ontology construction methodology frameworks used so far are limited in certain domains lack of mature knowledge hierarchy and require the reference alignments to be specified manually. This paper presents a constellation graph based method to build ontologies including two critical steps: transform the property of the concepts abstracted into the corresponding data; draw a constellation graph based on the data and the classes in the same constellation part constitute a new kind of classes. This approach can facilitate ontology construction process with little human efforts and be more time-saving. A practical example is used to illustrate the performance of this approach.

scholarly journals Role of the Government for Development of Sustainable Construction

2020 ◽  
Vol 22 (1) ◽  
pp. 53-62
Author(s):  
Aneta Marichova
Keyword(s):  
Economic Activity ◽  
Sustainable Construction ◽  
Construction Process ◽  
Construction Company ◽  
Construction Market ◽  
Organization And Management ◽  
The Government ◽  
Role Of The Government ◽  
Construction Product

Abstract In the last years questions related to sustainable development are particularly relevant. The construction market is usually identified as the first sector to face serious problems and requires special attention in implementing the idea. The main reasons for this assessment lie in the specifics of construction as an economic activity, the specifics of the construction product, the construction process, the specifics of organization and management of the construction company and the strong economic, social and environmental effect. The purpose of the proposed study is: 1) analysis of the problem of sustainability of the construction market, 2) the role and influence of the government for the development of sustainable construction.

scholarly journals Performance evaluation of different weeders in cotton

2020 ◽  
Vol 13 (2) ◽  
pp. 227-236
Author(s):  
Aman Mor ◽  
N.K. Bansal ◽  
Parveen ◽  
Nitin Karwasra ◽  
Sushil Kumar
Keyword(s):  
Field Capacity ◽  
Payback Period ◽  
Yield Data ◽  
Time Saving ◽  
Cotton Crop ◽  
Machine Performance ◽  
Labour Requirement ◽  
Efficient Machine ◽  
Three Stages ◽  
Time Of Harvest

The present study was carried out to predict the performance different type’s weeder in cotton crop so that efficient machine can be selected by farmer. The crop and machine performance parameter were recorded at three stages of cotton crop i.e. pre-square, square and flowering. The soil resistance was recorded before, just after weeding (3rd stage) and at the time of harvest. Yield data (g/plant) was recorded under all the treatments taken in both varieties. The weeding efficiency of different weeder was found between 74 to 89 per cent. The field capacity of tractor operated inter row rotary weeder was in the range of 0.54 to 0.59 ha/h whereas it was 0.8 ha/ h in tractor operated high clearance cultivator, 0.16 ha/h with engine operated power weeder and 0.05 ha/h with manual hand hoe. The per cent saving in cost of operation with mechanical weeder over manual hand hoe was in the range of 80 to 93. The B:C ratio of mechanical weeder selected for study was in the range of 1.57 to 4.4 and payback period was in the range of 0.44 to 1.7 years. Time saving over manual hand hoe in weeding operation with the use of tractor operated weeder was 90 to 93 per cent whereas in engine operated weeder it was 68.7 per cent over manual hand hoe. The per cent saving in labour requirement with the use of mechanical weeder was in the range of 96 to 99 per cent over manual hand hoe. From result obtained from the study tractor operated weeder (operating width= 1500mm) was found suitable for cotton crop.

scholarly journals Sustainable model for the implementation of a green building project

2019 ◽  
Vol 110 ◽  
pp. 01083 ◽  
Author(s):  
Veronika Luchkina
Keyword(s):  
Energy Efficient ◽  
Green Building ◽  
Technical Condition ◽  
Payback Period ◽  
Research Data ◽  
Construction Process ◽  
Building Projects ◽  
Geotechnical System ◽  
Technical Solutions ◽  
Building Project

The problem of today is a complex study of the multicomponent geotechnical system of large green building projects. The essence of the green building project is to introduce a set of technologies to improve the construction process and minimize future costs. A comprehensive implementation of energy-efficient technologies considered by the author allows obtaining an overall reduction in heat consumption from 30% to 70%, depending on the list of measures and selected technical solutions, as well as on the initial technical condition of the house. Based on these calculations, during the period under consideration, the NPV indicator is positive, and as a result, the proposed project pays off. The payback period of the Energy Efficient Home project is within 10,29 years, and the project is quite efficient. Taking into account the research data, it is planned to develop an algorithm for assessing the geomonitoring of environmental impacts in the development of green building projects.

APPLICATION OF SUPERBLOCKS FOR INCREASING EFFICIENCY OF PROJECT IMPLEMENTATION

2020 ◽  
pp. 40-43
Author(s):  
A.V. Trifonov ◽  
M.S. Volodkin ◽  
D.N.. Poltavskiy
Keyword(s):  
Capital Investment ◽  
Oil And Gas ◽  
Construction Process ◽  
Highly Qualified ◽  
Time Saving ◽  
Capital Projects ◽  
High Productivity ◽  
Oil And Gas Fields ◽  
Gas Fields

The works associated with the construction of infrastructure facilities in the field require significant involvement of highly qualified specialists, high-quality implementation of these works and it requires adjustment of the developed project documentation directly in the construction process. PJSC «Gazprom neft» is faced with the task of increasing the efficiency of capital projects, in particular, reducing the time for their implementation. The faster the field is equipped and ready to start production, the sooner the capital investment in the project will pay off. The article discusses the method of organizing the construction (arrangement) using block-complete devices, namely one of its methods – superblocks. The essence of the method is the manufacture in the factory of modules, enlarged mounting assemblies, instrumentation and automation devices and their subsequent enlarged assembly into a large-capacity unit (superblock). The mass of the superblock can reach up to 1000 tons. The use of superblocks in the development of oil and gas fields guarantees high productivity, time saving and the quality of the facilities being built.

Site Monitoring Analysis of Influence of Excavation and Construction of a Unsymmetrical Loading Twin-Arch Tunnel

2014 ◽  
Vol 584-586 ◽  
pp. 2083-2086
Author(s):  
Ku Zhu Zhu ◽  
Zu Jian Wang ◽  
Zhi Gang Wang ◽  
Yuan Cheng Liu
Keyword(s):  
Surrounding Rock ◽  
Monitoring Data ◽  
Construction Process ◽  
Site Monitoring ◽  
Initial Stage ◽  
Unsymmetrical Loading ◽  
Slope Design ◽  
Design Construction

Unsymmetrical loading twin-arch tunnel which has its own characteristics is different from the general separated tunnel. This paper takes a unsymmetrical loading twin-arch tunnel as the background, supervises the tunnel and clears up and analyzes the monitoring data. The results shows: (1) The subsidence of arch crown grows with section excavation, it diminishes gradually and tends to be stable in the initial stage of support and the complete stage of inverted arch. (2) The convergence pre-day of tunnel surrounding rock increases and becomes stable until the lower inverted arch has finished in the effect of unsymmetrical loading and excavation. (3) The surface position of tunnel midline is the most significant position of excavation influence. (4) Unsymmetrical loading makes the lining and middle wall become dislocated, and cracks and peeling phenomenon appears. These conclusions can provide reference for slope design, construction process and site monitoring for unsymmetrical loading twin-arch tunnel under similar conditions.

Study on Construction Parameters of Cement Deep Mixing Piles

2012 ◽  
Vol 226-228 ◽  
pp. 1386-1389
Author(s):  
Wen Tao Rong
Keyword(s):  
Rotation Speed ◽  
Construction Process ◽  
Construction Quality ◽  
Research Results ◽  
Deep Mixing ◽  
Shaft Rotation ◽  
And Control ◽  
Construction Efficiency ◽  
Cement Deep Mixing

Construction quality is one of the main reasons which lead to the failure of cement deep mixing pile. In order to ensure the construction quality of cement deep mixing pile and control its construction process, the influence of four construction parameters such as slurry conveying capacity, drilling and hoisting speed, agitation shaft rotation speed and remixing times on pile quality are analyzed. At last key reasons to ensure the construction quality of cement deep mixing pile are pointed out. Pile quality and construction efficiency should be considered when construction parameters being optimized. The research results provide reference for construction of cement deep mixing piles in the future.

scholarly journals Green building investment control system based on a three-dimensional parametric model of the green building

2021 ◽  
Vol 258 ◽  
pp. 09079
Author(s):  
Daria Monastyreva ◽  
Natalia Astafieva
Keyword(s):  
Construction Projects ◽  
Three Dimensional ◽  
Green Building ◽  
Building Construction ◽  
Construction Process ◽  
Investment Control ◽  
Complex Process ◽  
Work Done ◽  
Exact Amount ◽  
Construction Product

Investment in construction projects is a rather complex process. The customer of construction product, as a rule, is also its investor and for him the systematization of information about the construction process is a necessity. Construction investment control (CIC) is an integral part of the building construction process. Such control is a separate service that is necessary for the customer to objectively understand the installed work volumes and forecast deadlines. Completed construction and installation works are confirmed by acts of acceptance of the completed works, which are subsequently the basis for payment for the work done. In this paper, we developed a methodology for managing investments in construction, as well as their control using modern BIM technologies. The effectiveness of using 3D modelling in investment control was demonstrated on the example of a residential complex. In addition, the volume of work obtained from the 3D-model was compared with the volume of work calculated manually. As a result, the exact amount of work and schedules for forecasting investment of funds were obtained.

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